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Merge pull request #2835 from MathiasVP/value-number-perf

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C++: Value number performance fix
This commit is contained in:
Jonas Jensen
2020-02-15 20:40:53 +01:00
committed by GitHub
parent 8cda847dbc 49d2f5a60b
commit 0628625a76
3 changed files with 135 additions and 99 deletions
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78
cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/gvn/internal/ValueNumberingInternal.qll
View File

@@ -19,19 +19,18 @@ newtype TValueNumber =
fieldAddressValueNumber(_, irFunc, field, objectAddress)
} or
TBinaryValueNumber(
IRFunction irFunc, Opcode opcode, IRType type, TValueNumber leftOperand,
TValueNumber rightOperand
IRFunction irFunc, Opcode opcode, TValueNumber leftOperand, TValueNumber rightOperand
) {
binaryValueNumber(_, irFunc, opcode, type, leftOperand, rightOperand)
binaryValueNumber(_, irFunc, opcode, leftOperand, rightOperand)
} or
TPointerArithmeticValueNumber(
IRFunction irFunc, Opcode opcode, IRType type, int elementSize, TValueNumber leftOperand,
IRFunction irFunc, Opcode opcode, int elementSize, TValueNumber leftOperand,
TValueNumber rightOperand
) {
pointerArithmeticValueNumber(_, irFunc, opcode, type, elementSize, leftOperand, rightOperand)
pointerArithmeticValueNumber(_, irFunc, opcode, elementSize, leftOperand, rightOperand)
} or
TUnaryValueNumber(IRFunction irFunc, Opcode opcode, IRType type, TValueNumber operand) {
unaryValueNumber(_, irFunc, opcode, type, operand)
TUnaryValueNumber(IRFunction irFunc, Opcode opcode, TValueNumber operand) {
unaryValueNumber(_, irFunc, opcode, operand)
} or
TInheritanceConversionValueNumber(
IRFunction irFunc, Opcode opcode, Class baseClass, Class derivedClass, TValueNumber operand
@@ -99,6 +98,19 @@ private predicate numberableInstruction(Instruction instr) {
instr instanceof LoadTotalOverlapInstruction
}
private predicate filteredNumberableInstruction(Instruction instr) {
// count rather than strictcount to handle missing AST elements
// separate instanceof and inline casts to avoid failed casts with a count of 0
instr instanceof VariableAddressInstruction and
count(instr.(VariableAddressInstruction).getIRVariable().getAST()) != 1
or
instr instanceof ConstantInstruction and
count(instr.getResultIRType()) != 1
or
instr instanceof FieldAddressInstruction and
count(instr.(FieldAddressInstruction).getField()) != 1
}
private predicate variableAddressValueNumber(
VariableAddressInstruction instr, IRFunction irFunc, Language::AST ast
) {
@@ -106,7 +118,8 @@ private predicate variableAddressValueNumber(
// The underlying AST element is used as value-numbering key instead of the
// `IRVariable` to work around a problem where a variable or expression with
// multiple types gives rise to multiple `IRVariable`s.
instr.getIRVariable().getAST() = ast
instr.getIRVariable().getAST() = ast and
strictcount(instr.getIRVariable().getAST()) = 1
}
private predicate initializeParameterValueNumber(
@@ -123,10 +136,11 @@ private predicate initializeThisValueNumber(InitializeThisInstruction instr, IRF
instr.getEnclosingIRFunction() = irFunc
}
private predicate constantValueNumber(
predicate constantValueNumber(
ConstantInstruction instr, IRFunction irFunc, IRType type, string value
) {
instr.getEnclosingIRFunction() = irFunc and
strictcount(instr.getResultIRType()) = 1 and
instr.getResultIRType() = type and
instr.getValue() = value
}
@@ -145,42 +159,40 @@ private predicate fieldAddressValueNumber(
) {
instr.getEnclosingIRFunction() = irFunc and
instr.getField() = field and
strictcount(instr.getField()) = 1 and
tvalueNumber(instr.getObjectAddress()) = objectAddress
}
private predicate binaryValueNumber(
BinaryInstruction instr, IRFunction irFunc, Opcode opcode, IRType type, TValueNumber leftOperand,
BinaryInstruction instr, IRFunction irFunc, Opcode opcode, TValueNumber leftOperand,
TValueNumber rightOperand
) {
instr.getEnclosingIRFunction() = irFunc and
not instr instanceof PointerArithmeticInstruction and
instr.getOpcode() = opcode and
instr.getResultIRType() = type and
tvalueNumber(instr.getLeft()) = leftOperand and
tvalueNumber(instr.getRight()) = rightOperand
}
private predicate pointerArithmeticValueNumber(
PointerArithmeticInstruction instr, IRFunction irFunc, Opcode opcode, IRType type,
int elementSize, TValueNumber leftOperand, TValueNumber rightOperand
PointerArithmeticInstruction instr, IRFunction irFunc, Opcode opcode, int elementSize,
TValueNumber leftOperand, TValueNumber rightOperand
) {
instr.getEnclosingIRFunction() = irFunc and
instr.getOpcode() = opcode and
instr.getResultIRType() = type and
instr.getElementSize() = elementSize and
tvalueNumber(instr.getLeft()) = leftOperand and
tvalueNumber(instr.getRight()) = rightOperand
}
private predicate unaryValueNumber(
UnaryInstruction instr, IRFunction irFunc, Opcode opcode, IRType type, TValueNumber operand
UnaryInstruction instr, IRFunction irFunc, Opcode opcode, TValueNumber operand
) {
instr.getEnclosingIRFunction() = irFunc and
not instr instanceof InheritanceConversionInstruction and
not instr instanceof CopyInstruction and
not instr instanceof FieldAddressInstruction and
instr.getOpcode() = opcode and
instr.getResultIRType() = type and
tvalueNumber(instr.getUnary()) = operand
}
@@ -200,9 +212,9 @@ private predicate loadTotalOverlapValueNumber(
TValueNumber operand
) {
instr.getEnclosingIRFunction() = irFunc and
instr.getResultIRType() = type and
tvalueNumber(instr.getAnOperand().(MemoryOperand).getAnyDef()) = memOperand and
tvalueNumberOfOperand(instr.getAnOperand().(AddressOperand)) = operand
tvalueNumberOfOperand(instr.getAnOperand().(AddressOperand)) = operand and
instr.getResultIRType() = type
}
/**
@@ -212,7 +224,11 @@ private predicate loadTotalOverlapValueNumber(
private predicate uniqueValueNumber(Instruction instr, IRFunction irFunc) {
instr.getEnclosingIRFunction() = irFunc and
not instr.getResultIRType() instanceof IRVoidType and
not numberableInstruction(instr)
(
not numberableInstruction(instr)
or
filteredNumberableInstruction(instr)
)
}
/**
@@ -255,7 +271,7 @@ private TValueNumber nonUniqueValueNumber(Instruction instr) {
initializeThisValueNumber(instr, irFunc) and
result = TInitializeThisValueNumber(irFunc)
or
exists(IRType type, string value |
exists(string value, IRType type |
constantValueNumber(instr, irFunc, type, value) and
result = TConstantValueNumber(irFunc, type, value)
)
@@ -270,14 +286,14 @@ private TValueNumber nonUniqueValueNumber(Instruction instr) {
result = TFieldAddressValueNumber(irFunc, field, objectAddress)
)
or
exists(Opcode opcode, IRType type, TValueNumber leftOperand, TValueNumber rightOperand |
binaryValueNumber(instr, irFunc, opcode, type, leftOperand, rightOperand) and
result = TBinaryValueNumber(irFunc, opcode, type, leftOperand, rightOperand)
exists(Opcode opcode, TValueNumber leftOperand, TValueNumber rightOperand |
binaryValueNumber(instr, irFunc, opcode, leftOperand, rightOperand) and
result = TBinaryValueNumber(irFunc, opcode, leftOperand, rightOperand)
)
or
exists(Opcode opcode, IRType type, TValueNumber operand |
unaryValueNumber(instr, irFunc, opcode, type, operand) and
result = TUnaryValueNumber(irFunc, opcode, type, operand)
exists(Opcode opcode, TValueNumber operand |
unaryValueNumber(instr, irFunc, opcode, operand) and
result = TUnaryValueNumber(irFunc, opcode, operand)
)
or
exists(
@@ -287,14 +303,10 @@ private TValueNumber nonUniqueValueNumber(Instruction instr) {
result = TInheritanceConversionValueNumber(irFunc, opcode, baseClass, derivedClass, operand)
)
or
exists(
Opcode opcode, IRType type, int elementSize, TValueNumber leftOperand,
TValueNumber rightOperand
|
pointerArithmeticValueNumber(instr, irFunc, opcode, type, elementSize, leftOperand,
rightOperand) and
exists(Opcode opcode, int elementSize, TValueNumber leftOperand, TValueNumber rightOperand |
pointerArithmeticValueNumber(instr, irFunc, opcode, elementSize, leftOperand, rightOperand) and
result =
TPointerArithmeticValueNumber(irFunc, opcode, type, elementSize, leftOperand, rightOperand)
TPointerArithmeticValueNumber(irFunc, opcode, elementSize, leftOperand, rightOperand)
)
or
exists(IRType type, TValueNumber memOperand, TValueNumber operand |

78
cpp/ql/src/semmle/code/cpp/ir/implementation/raw/gvn/internal/ValueNumberingInternal.qll
View File

@@ -19,19 +19,18 @@ newtype TValueNumber =
fieldAddressValueNumber(_, irFunc, field, objectAddress)
} or
TBinaryValueNumber(
IRFunction irFunc, Opcode opcode, IRType type, TValueNumber leftOperand,
TValueNumber rightOperand
IRFunction irFunc, Opcode opcode, TValueNumber leftOperand, TValueNumber rightOperand
) {
binaryValueNumber(_, irFunc, opcode, type, leftOperand, rightOperand)
binaryValueNumber(_, irFunc, opcode, leftOperand, rightOperand)
} or
TPointerArithmeticValueNumber(
IRFunction irFunc, Opcode opcode, IRType type, int elementSize, TValueNumber leftOperand,
IRFunction irFunc, Opcode opcode, int elementSize, TValueNumber leftOperand,
TValueNumber rightOperand
) {
pointerArithmeticValueNumber(_, irFunc, opcode, type, elementSize, leftOperand, rightOperand)
pointerArithmeticValueNumber(_, irFunc, opcode, elementSize, leftOperand, rightOperand)
} or
TUnaryValueNumber(IRFunction irFunc, Opcode opcode, IRType type, TValueNumber operand) {
unaryValueNumber(_, irFunc, opcode, type, operand)
TUnaryValueNumber(IRFunction irFunc, Opcode opcode, TValueNumber operand) {
unaryValueNumber(_, irFunc, opcode, operand)
} or
TInheritanceConversionValueNumber(
IRFunction irFunc, Opcode opcode, Class baseClass, Class derivedClass, TValueNumber operand
@@ -99,6 +98,19 @@ private predicate numberableInstruction(Instruction instr) {
instr instanceof LoadTotalOverlapInstruction
}
private predicate filteredNumberableInstruction(Instruction instr) {
// count rather than strictcount to handle missing AST elements
// separate instanceof and inline casts to avoid failed casts with a count of 0
instr instanceof VariableAddressInstruction and
count(instr.(VariableAddressInstruction).getIRVariable().getAST()) != 1
or
instr instanceof ConstantInstruction and
count(instr.getResultIRType()) != 1
or
instr instanceof FieldAddressInstruction and
count(instr.(FieldAddressInstruction).getField()) != 1
}
private predicate variableAddressValueNumber(
VariableAddressInstruction instr, IRFunction irFunc, Language::AST ast
) {
@@ -106,7 +118,8 @@ private predicate variableAddressValueNumber(
// The underlying AST element is used as value-numbering key instead of the
// `IRVariable` to work around a problem where a variable or expression with
// multiple types gives rise to multiple `IRVariable`s.
instr.getIRVariable().getAST() = ast
instr.getIRVariable().getAST() = ast and
strictcount(instr.getIRVariable().getAST()) = 1
}
private predicate initializeParameterValueNumber(
@@ -123,10 +136,11 @@ private predicate initializeThisValueNumber(InitializeThisInstruction instr, IRF
instr.getEnclosingIRFunction() = irFunc
}
private predicate constantValueNumber(
predicate constantValueNumber(
ConstantInstruction instr, IRFunction irFunc, IRType type, string value
) {
instr.getEnclosingIRFunction() = irFunc and
strictcount(instr.getResultIRType()) = 1 and
instr.getResultIRType() = type and
instr.getValue() = value
}
@@ -145,42 +159,40 @@ private predicate fieldAddressValueNumber(
) {
instr.getEnclosingIRFunction() = irFunc and
instr.getField() = field and
strictcount(instr.getField()) = 1 and
tvalueNumber(instr.getObjectAddress()) = objectAddress
}
private predicate binaryValueNumber(
BinaryInstruction instr, IRFunction irFunc, Opcode opcode, IRType type, TValueNumber leftOperand,
BinaryInstruction instr, IRFunction irFunc, Opcode opcode, TValueNumber leftOperand,
TValueNumber rightOperand
) {
instr.getEnclosingIRFunction() = irFunc and
not instr instanceof PointerArithmeticInstruction and
instr.getOpcode() = opcode and
instr.getResultIRType() = type and
tvalueNumber(instr.getLeft()) = leftOperand and
tvalueNumber(instr.getRight()) = rightOperand
}
private predicate pointerArithmeticValueNumber(
PointerArithmeticInstruction instr, IRFunction irFunc, Opcode opcode, IRType type,
int elementSize, TValueNumber leftOperand, TValueNumber rightOperand
PointerArithmeticInstruction instr, IRFunction irFunc, Opcode opcode, int elementSize,
TValueNumber leftOperand, TValueNumber rightOperand
) {
instr.getEnclosingIRFunction() = irFunc and
instr.getOpcode() = opcode and
instr.getResultIRType() = type and
instr.getElementSize() = elementSize and
tvalueNumber(instr.getLeft()) = leftOperand and
tvalueNumber(instr.getRight()) = rightOperand
}
private predicate unaryValueNumber(
UnaryInstruction instr, IRFunction irFunc, Opcode opcode, IRType type, TValueNumber operand
UnaryInstruction instr, IRFunction irFunc, Opcode opcode, TValueNumber operand
) {
instr.getEnclosingIRFunction() = irFunc and
not instr instanceof InheritanceConversionInstruction and
not instr instanceof CopyInstruction and
not instr instanceof FieldAddressInstruction and
instr.getOpcode() = opcode and
instr.getResultIRType() = type and
tvalueNumber(instr.getUnary()) = operand
}
@@ -200,9 +212,9 @@ private predicate loadTotalOverlapValueNumber(
TValueNumber operand
) {
instr.getEnclosingIRFunction() = irFunc and
instr.getResultIRType() = type and
tvalueNumber(instr.getAnOperand().(MemoryOperand).getAnyDef()) = memOperand and
tvalueNumberOfOperand(instr.getAnOperand().(AddressOperand)) = operand
tvalueNumberOfOperand(instr.getAnOperand().(AddressOperand)) = operand and
instr.getResultIRType() = type
}
/**
@@ -212,7 +224,11 @@ private predicate loadTotalOverlapValueNumber(
private predicate uniqueValueNumber(Instruction instr, IRFunction irFunc) {
instr.getEnclosingIRFunction() = irFunc and
not instr.getResultIRType() instanceof IRVoidType and
not numberableInstruction(instr)
(
not numberableInstruction(instr)
or
filteredNumberableInstruction(instr)
)
}
/**
@@ -255,7 +271,7 @@ private TValueNumber nonUniqueValueNumber(Instruction instr) {
initializeThisValueNumber(instr, irFunc) and
result = TInitializeThisValueNumber(irFunc)
or
exists(IRType type, string value |
exists(string value, IRType type |
constantValueNumber(instr, irFunc, type, value) and
result = TConstantValueNumber(irFunc, type, value)
)
@@ -270,14 +286,14 @@ private TValueNumber nonUniqueValueNumber(Instruction instr) {
result = TFieldAddressValueNumber(irFunc, field, objectAddress)
)
or
exists(Opcode opcode, IRType type, TValueNumber leftOperand, TValueNumber rightOperand |
binaryValueNumber(instr, irFunc, opcode, type, leftOperand, rightOperand) and
result = TBinaryValueNumber(irFunc, opcode, type, leftOperand, rightOperand)
exists(Opcode opcode, TValueNumber leftOperand, TValueNumber rightOperand |
binaryValueNumber(instr, irFunc, opcode, leftOperand, rightOperand) and
result = TBinaryValueNumber(irFunc, opcode, leftOperand, rightOperand)
)
or
exists(Opcode opcode, IRType type, TValueNumber operand |
unaryValueNumber(instr, irFunc, opcode, type, operand) and
result = TUnaryValueNumber(irFunc, opcode, type, operand)
exists(Opcode opcode, TValueNumber operand |
unaryValueNumber(instr, irFunc, opcode, operand) and
result = TUnaryValueNumber(irFunc, opcode, operand)
)
or
exists(
@@ -287,14 +303,10 @@ private TValueNumber nonUniqueValueNumber(Instruction instr) {
result = TInheritanceConversionValueNumber(irFunc, opcode, baseClass, derivedClass, operand)
)
or
exists(
Opcode opcode, IRType type, int elementSize, TValueNumber leftOperand,
TValueNumber rightOperand
|
pointerArithmeticValueNumber(instr, irFunc, opcode, type, elementSize, leftOperand,
rightOperand) and
exists(Opcode opcode, int elementSize, TValueNumber leftOperand, TValueNumber rightOperand |
pointerArithmeticValueNumber(instr, irFunc, opcode, elementSize, leftOperand, rightOperand) and
result =
TPointerArithmeticValueNumber(irFunc, opcode, type, elementSize, leftOperand, rightOperand)
TPointerArithmeticValueNumber(irFunc, opcode, elementSize, leftOperand, rightOperand)
)
or
exists(IRType type, TValueNumber memOperand, TValueNumber operand |

78
cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/gvn/internal/ValueNumberingInternal.qll
View File

@@ -19,19 +19,18 @@ newtype TValueNumber =
fieldAddressValueNumber(_, irFunc, field, objectAddress)
} or
TBinaryValueNumber(
IRFunction irFunc, Opcode opcode, IRType type, TValueNumber leftOperand,
TValueNumber rightOperand
IRFunction irFunc, Opcode opcode, TValueNumber leftOperand, TValueNumber rightOperand
) {
binaryValueNumber(_, irFunc, opcode, type, leftOperand, rightOperand)
binaryValueNumber(_, irFunc, opcode, leftOperand, rightOperand)
} or
TPointerArithmeticValueNumber(
IRFunction irFunc, Opcode opcode, IRType type, int elementSize, TValueNumber leftOperand,
IRFunction irFunc, Opcode opcode, int elementSize, TValueNumber leftOperand,
TValueNumber rightOperand
) {
pointerArithmeticValueNumber(_, irFunc, opcode, type, elementSize, leftOperand, rightOperand)
pointerArithmeticValueNumber(_, irFunc, opcode, elementSize, leftOperand, rightOperand)
} or
TUnaryValueNumber(IRFunction irFunc, Opcode opcode, IRType type, TValueNumber operand) {
unaryValueNumber(_, irFunc, opcode, type, operand)
TUnaryValueNumber(IRFunction irFunc, Opcode opcode, TValueNumber operand) {
unaryValueNumber(_, irFunc, opcode, operand)
} or
TInheritanceConversionValueNumber(
IRFunction irFunc, Opcode opcode, Class baseClass, Class derivedClass, TValueNumber operand
@@ -99,6 +98,19 @@ private predicate numberableInstruction(Instruction instr) {
instr instanceof LoadTotalOverlapInstruction
}
private predicate filteredNumberableInstruction(Instruction instr) {
// count rather than strictcount to handle missing AST elements
// separate instanceof and inline casts to avoid failed casts with a count of 0
instr instanceof VariableAddressInstruction and
count(instr.(VariableAddressInstruction).getIRVariable().getAST()) != 1
or
instr instanceof ConstantInstruction and
count(instr.getResultIRType()) != 1
or
instr instanceof FieldAddressInstruction and
count(instr.(FieldAddressInstruction).getField()) != 1
}
private predicate variableAddressValueNumber(
VariableAddressInstruction instr, IRFunction irFunc, Language::AST ast
) {
@@ -106,7 +118,8 @@ private predicate variableAddressValueNumber(
// The underlying AST element is used as value-numbering key instead of the
// `IRVariable` to work around a problem where a variable or expression with
// multiple types gives rise to multiple `IRVariable`s.
instr.getIRVariable().getAST() = ast
instr.getIRVariable().getAST() = ast and
strictcount(instr.getIRVariable().getAST()) = 1
}
private predicate initializeParameterValueNumber(
@@ -123,10 +136,11 @@ private predicate initializeThisValueNumber(InitializeThisInstruction instr, IRF
instr.getEnclosingIRFunction() = irFunc
}
private predicate constantValueNumber(
predicate constantValueNumber(
ConstantInstruction instr, IRFunction irFunc, IRType type, string value
) {
instr.getEnclosingIRFunction() = irFunc and
strictcount(instr.getResultIRType()) = 1 and
instr.getResultIRType() = type and
instr.getValue() = value
}
@@ -145,42 +159,40 @@ private predicate fieldAddressValueNumber(
) {
instr.getEnclosingIRFunction() = irFunc and
instr.getField() = field and
strictcount(instr.getField()) = 1 and
tvalueNumber(instr.getObjectAddress()) = objectAddress
}
private predicate binaryValueNumber(
BinaryInstruction instr, IRFunction irFunc, Opcode opcode, IRType type, TValueNumber leftOperand,
BinaryInstruction instr, IRFunction irFunc, Opcode opcode, TValueNumber leftOperand,
TValueNumber rightOperand
) {
instr.getEnclosingIRFunction() = irFunc and
not instr instanceof PointerArithmeticInstruction and
instr.getOpcode() = opcode and
instr.getResultIRType() = type and
tvalueNumber(instr.getLeft()) = leftOperand and
tvalueNumber(instr.getRight()) = rightOperand
}
private predicate pointerArithmeticValueNumber(
PointerArithmeticInstruction instr, IRFunction irFunc, Opcode opcode, IRType type,
int elementSize, TValueNumber leftOperand, TValueNumber rightOperand
PointerArithmeticInstruction instr, IRFunction irFunc, Opcode opcode, int elementSize,
TValueNumber leftOperand, TValueNumber rightOperand
) {
instr.getEnclosingIRFunction() = irFunc and
instr.getOpcode() = opcode and
instr.getResultIRType() = type and
instr.getElementSize() = elementSize and
tvalueNumber(instr.getLeft()) = leftOperand and
tvalueNumber(instr.getRight()) = rightOperand
}
private predicate unaryValueNumber(
UnaryInstruction instr, IRFunction irFunc, Opcode opcode, IRType type, TValueNumber operand
UnaryInstruction instr, IRFunction irFunc, Opcode opcode, TValueNumber operand
) {
instr.getEnclosingIRFunction() = irFunc and
not instr instanceof InheritanceConversionInstruction and
not instr instanceof CopyInstruction and
not instr instanceof FieldAddressInstruction and
instr.getOpcode() = opcode and
instr.getResultIRType() = type and
tvalueNumber(instr.getUnary()) = operand
}
@@ -200,9 +212,9 @@ private predicate loadTotalOverlapValueNumber(
TValueNumber operand
) {
instr.getEnclosingIRFunction() = irFunc and
instr.getResultIRType() = type and
tvalueNumber(instr.getAnOperand().(MemoryOperand).getAnyDef()) = memOperand and
tvalueNumberOfOperand(instr.getAnOperand().(AddressOperand)) = operand
tvalueNumberOfOperand(instr.getAnOperand().(AddressOperand)) = operand and
instr.getResultIRType() = type
}
/**
@@ -212,7 +224,11 @@ private predicate loadTotalOverlapValueNumber(
private predicate uniqueValueNumber(Instruction instr, IRFunction irFunc) {
instr.getEnclosingIRFunction() = irFunc and
not instr.getResultIRType() instanceof IRVoidType and
not numberableInstruction(instr)
(
not numberableInstruction(instr)
or
filteredNumberableInstruction(instr)
)
}
/**
@@ -255,7 +271,7 @@ private TValueNumber nonUniqueValueNumber(Instruction instr) {
initializeThisValueNumber(instr, irFunc) and
result = TInitializeThisValueNumber(irFunc)
or
exists(IRType type, string value |
exists(string value, IRType type |
constantValueNumber(instr, irFunc, type, value) and
result = TConstantValueNumber(irFunc, type, value)
)
@@ -270,14 +286,14 @@ private TValueNumber nonUniqueValueNumber(Instruction instr) {
result = TFieldAddressValueNumber(irFunc, field, objectAddress)
)
or
exists(Opcode opcode, IRType type, TValueNumber leftOperand, TValueNumber rightOperand |
binaryValueNumber(instr, irFunc, opcode, type, leftOperand, rightOperand) and
result = TBinaryValueNumber(irFunc, opcode, type, leftOperand, rightOperand)
exists(Opcode opcode, TValueNumber leftOperand, TValueNumber rightOperand |
binaryValueNumber(instr, irFunc, opcode, leftOperand, rightOperand) and
result = TBinaryValueNumber(irFunc, opcode, leftOperand, rightOperand)
)
or
exists(Opcode opcode, IRType type, TValueNumber operand |
unaryValueNumber(instr, irFunc, opcode, type, operand) and
result = TUnaryValueNumber(irFunc, opcode, type, operand)
exists(Opcode opcode, TValueNumber operand |
unaryValueNumber(instr, irFunc, opcode, operand) and
result = TUnaryValueNumber(irFunc, opcode, operand)
)
or
exists(
@@ -287,14 +303,10 @@ private TValueNumber nonUniqueValueNumber(Instruction instr) {
result = TInheritanceConversionValueNumber(irFunc, opcode, baseClass, derivedClass, operand)
)
or
exists(
Opcode opcode, IRType type, int elementSize, TValueNumber leftOperand,
TValueNumber rightOperand
|
pointerArithmeticValueNumber(instr, irFunc, opcode, type, elementSize, leftOperand,
rightOperand) and
exists(Opcode opcode, int elementSize, TValueNumber leftOperand, TValueNumber rightOperand |
pointerArithmeticValueNumber(instr, irFunc, opcode, elementSize, leftOperand, rightOperand) and
result =
TPointerArithmeticValueNumber(irFunc, opcode, type, elementSize, leftOperand, rightOperand)
TPointerArithmeticValueNumber(irFunc, opcode, elementSize, leftOperand, rightOperand)
)
or
exists(IRType type, TValueNumber memOperand, TValueNumber operand |